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Add 6/80 and 21/63

6/80 + 21/63 is 49/120.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 63 is 5040

    Next, find the equivalent fraction of both fractional numbers with denominator 5040
  2. For the 1st fraction, since 80 × 63 = 5040,
    6/80 = 6 × 63/80 × 63 = 378/5040
  3. Likewise, for the 2nd fraction, since 63 × 80 = 5040,
    21/63 = 21 × 80/63 × 80 = 1680/5040
  4. Add the two like fractions:
    378/5040 + 1680/5040 = 378 + 1680/5040 = 2058/5040
  5. 2058/5040 simplified gives 49/120
  6. So, 6/80 + 21/63 = 49/120

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